839  
SXUS45 KMSO 202330  
RECGPI  
 
RECREATION FORECAST FOR FLATHEAD LAKE  
NATIONAL WEATHER SERVICE MISSOULA MT  
505 PM MDT SUN SEP 20 2026  
 
NOTE: THE EXPERIMENTAL WAVE HEIGHT FORECASTS ARE REPRESENTATIVE OF  
THE MID LAKE WATERS AND DOWNWIND SHORES. WAVE HEIGHTS MAY BE  
SIGNIFICANTLY LESS ON UPWIND SHORES.  
   
TONIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 50S. VARIABLE WINDS UP  
TO 10 MPH. WAVES LESS THAN 1 FOOT.    
MONDAY
 
SUNNY. HIGHS AROUND 70 . VARIABLE WINDS UP TO 10 MPH.  
WAVES LESS THAN 1 FOOT.    
MONDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 50S. VARIABLE WINDS  
UP TO 10 MPH. WAVES LESS THAN 1 FOOT.    
TUESDAY
 
MOSTLY SUNNY. HIGHS AROUND 70 . VARIABLE WINDS UP TO  
10 MPH. WAVES LESS THAN 1 FOOT.  
 
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